In this report the term 'remotely operated vehicle' (ROV) is used primarily for tethered free-swimming vehicles and autonomous operated vehicles (AUV). This study included the development of a world inventory or ROVS approx. 270 different designs) that included their physical characteristics and principal functions. Many state-of-the-art environmental and principal functions. Many state-of-the-art environmental sensors can easily be integrated into an ROV system to provide both real-time an self-recording data sets. The study attempts to answer the following questions: (1). What are the capabilities of current ROV technology to satisfy AEAS environmental support requirements in Arctic regions? (2). What are the ROV technology shortfalls, if any, that need to be resolved by further R&D to fulfill AEAS requirements? (3). What are the ROV technology trends? (4). What is the status of the U.S. and Canadian ROV expertise and manufacturing capability? (5). What published information is available on ROV technology? (6). What actions should be taken by the AEAS program regrading the application of ROV technology to AEAS requirements?